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An ethylene alpha-olefin copolymer having (a) a density of from about 0.910 g/cc to about 0.940 g/cc; (b) a weight average molecular weight of from about 150,000 g/mol to about 300,000 g/mol; and (c) a melt index at a load of 2.16 kg of from about 0.01 dg/10 min. to about 0.5 dg/min.; wherein a 1 mi

An ethylene alpha-olefin copolymer having (a) a density of from about 0.910 g/cc to about 0.940 g/cc; (b) a weight average molecular weight of from about 150,000 g/mol to about 300,000 g/mol; and (c) a melt index at a load of 2.16 kg of from about 0.01 dg/10 min. to about 0.5 dg/min.; wherein a 1 mil blown film formed from the polymer composition is characterized by (i) a Dart Impact strength greater than about 175 g/mil; (ii) an Elmendorf machine direction tear strength greater than about 20 g/mil; and (iii) an Elmendorf transverse direction tear strength greater than about 475 g/mil.

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1. An ethylene alpha-olefin copolymer having: (a) a density of from about 0.910 g/cc to about 0.940 g/cc;(b) a weight average molecular weight of from about 150,000 g/mol to about 300,000 g/mol wherein the copolymer comprises a metallocene-catalyzed copolymer having a higher molecular weight compone

1. An ethylene alpha-olefin copolymer having: (a) a density of from about 0.910 g/cc to about 0.940 g/cc;(b) a weight average molecular weight of from about 150,000 g/mol to about 300,000 g/mol wherein the copolymer comprises a metallocene-catalyzed copolymer having a higher molecular weight component and a lower molecular weight component, wherein the lower molecular weight component has a weight average molecular weight of from about 5,000 g/mol to about 100,000 g/mol, and wherein an alpha-olefin comonomer of the higher molecular weight component and an alpha-olefin comonomer of the lower molecular weight component are the same;(c) a melt index at a load of 2.16 kg of from about 0.01 dg/min to about 0.5 dg/min; wherein the copolymer is bimodal;(d) a CY-a value of from about 0.35 to about 0.65; and(e) a ratio of high load melt index (HLMI)/melt index (MI) of from about 100 to about 2500 where the HLMI is determined under a load of 21.6 kg, the MI is determined under a load of 2.16 kg and both are determined in accordance with ASTM D 1238 and characterized by:(i) a Dart Impact strength of from about 100 g to 420 g when tested in accordance with ASTM D1709 Method A using a test specimen having a 1 mil thickness;(ii) an Elmendorf machine direction tear strength of from about 10 g to 90 g when tested in accordance with ASTM D1922 using a test specimen having a 1 mil thickness; and(iii) an Elmendorf transverse direction tear strength greater than about 475 g/mil when tested in accordance with ASTM D1922 using a test specimen having a 1 mil thickness. 2. The copolymer of claim 1 wherein the higher molecular weight component has a weight average molecular weight of from about 300,000 g/mol to about 600,000 g/mol. 3. The copolymer of claim 1 having a number average molecular weight of from about 8,000 g/mol to about 35,000 g/mol. 4. The copolymer of claim 1 having a molecular weight distribution of from about 4 to about 30. 5. The copolymer of claim 1 having an Eta(0) value of from about 1×104 Pa·s to about 5×105 Pa·s. 6. The copolymer of claim 1 having a tau-eta value of from about 0.2 s to about 5 s. 7. The copolymer of claim 1 having a melt index at a load of 5.0 kg of from about 0.01 dg/min to about 1 dg/min. 8. The copolymer of claim 1 having a melt index at a load of 10.0 kg of from about 0.01 dg/min to about 5 dg/min. 9. The copolymer of claim 1 having a high-load melt index at a load of 21.6 kg of from about 4 dg/min to about 25 dg/min. 10. The copolymer of claim 1 having a yield strain in the machine direction of less than about 8% when tested in accordance with ASTM D882. 11. The copolymer of claim 1 having a sum of the yield strain in the machine direction and yield strain in the transverse direction of less than about 15% when tested in accordance with ASTM D882. 12. The copolymer of claim 1 wherein the copolymer comprises 1-butene, 1-pentene, 1-hexene, 3-methyl-1-butene, 4-methyl-1-pentene, 1-heptene, 1-octene, 1-nonene, 1-decene or combinations thereof. 13. The copolymer of claim 1 having a Spencer impact of from about 0.25 J to about 2.5 J when tested in accordance with ASTM D3420 using a test specimen having a 1 mil thickness. 14. The copolymer of claim 1 having a haze value of greater than about 70% % when tested in accordance with ASTM D1003. 15. The copolymer of claim 1 having a haze value of greater than about 80% when tested in accordance with ASTM D1003. 16. An ethylene alpha-olefin copolymer having: (a) a density of from about 0.910 g/cc to about 0.940 g/cc;(b) a weight average molecular weight of from about 150,000 g/mol to about 300,000 g/mol; and(c) a melt index at a load of 2.16 kg of from about 0.01 dg/min to about 0.5 dg/min wherein the copolymer is bimodal and comprises a metallocene-catalyzed copolymer having a higher molecular weight component and a lower molecular weight component, wherein the lower molecular weight component has a weight average molecular weight of from about 5,000 g/mol to about 100,000 g/mol, and wherein an alpha-olefin comonomer of the higher molecular weight component and an alpha-olefin comonomer of the lower molecular weight component are the same;(d) a CY-a value of from about 0.35 to about 0.65; and(e) a ratio of high load melt index (HLMI)/melt index (MI) of from about 100 to about 2500 where the HLMI is determined under a load of 21.6 kg, the MI is determined under a load of 2.16 kg and both are determined in accordance with ASTM D 1238 wherein the copolymer is characterized by:(i) a Dart Impact strength of from about 100 g to 420 g when tested in accordance with ASTM D1709 Method A using a test specimen having a 1 mil thickness;(ii) an Elmendorf machine direction tear strength of from about 10 g to 90 g when tested in accordance with ASTM D1922 using a test specimen having a 1 mil thickness; and(iii) an Elmendorf transverse direction tear strength greater than about 550 g/mil when tested in accordance with ASTM D1922 using a test specimen having a 1 mil thickness. 17. An ethylene alpha-olefin copolymer having: a density of from about 0.910 g/cc to about 0.940 g/cc;a weight average molecular weight of from about 150,000 g/mol to about 300,000 g/mol;a melt index at a load of 2.16 kg of from about 0.01 dg/min to about 0.5 dg/min;a melt index at a load of 5.0 kg of from about 0.01 dg/min to about 1 dg/min;a melt index at a load of 10.0 kg of from about 0.01 dg/min to about 5 dg/min; anda high-load melt index at a load of 21.6 kg of from about 4 dg/min to about 25 dg/min wherein the copolymer is bimodal and comprises a metallocene-catalyzed copolymer having a higher molecular weight component and a lower molecular weight component, wherein the lower molecular weight component has a weight average molecular weight of from about 5,000 g/mol to about 100,000 g/mol, wherein an alpha-olefin comonomer of the higher molecular weight component and an alpha-olefin comonomer of the lower molecular weight component are the same, a CY-a value of from about 0.35 to about 0.65 and a ratio of high load melt index (HLMI)/melt index (MI) of from about 100 to about 2500 where the HLMI is determined under a load of 21.6 kg, the MI is determined under a load of 2.16 kg and both are determined in accordance with ASTM D 1238, andwherein the copolymer has an Elmendorf tear strength in the machine direction of from about 10 g to 90 g as determined in accordance with ASTM D1922 using a test specimen having a 1 mil thickness and a dart drop impact strength, tested in accordance with ASTM D1709 Method A, of from about 100 g to 420 g using a test specimen having a 1 mil thickness. 18. A film prepared from the copolymer of claim 1. 19. The film of claim 18 having an oxygen transmission rate of less than about 525 cc/100 in2. 20. The copolymer of claim 16 having an oxygen transmission rate of less than about 525 cc/100 in2 when tested in accordance with ASTM D3985 using a test specimen having a 1 mil thickness.