That movie did a major dis-service to sharks of all types, but I guess I probably don't need to reiterate that in any detail.
Did see a Mythbusters episode recently where they tested what a real shark of that size was capable of - and yes - it coud smash a small whole in a boat, and can rip of a shark cage with its weight alone (estimated at 3000 lbs.). Other things they tested that were busted include shooting a scuba tank - they shot two different tanks under full pressure (and at my prediction), it just turned it into a small rocket engine - no explosion. They even used the actual tanks as found in the actual movie so that someone couldn't say that they were different tanks!
Other things that were bogus too were dragging the boat backwards - an impossibility for a shark that size (we all knew this before hand too) and holding those bobbing yellow barrels under the water - they exhibited 1300 pounds of pulling force before only three of them slid under the water (And jaws pulled 5 or 6 underwater for long periods of time?). They used the exact yellow barrels from the movie. Basically - Jaws was impossible in more ways than one!
-S
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