Continuity mistake: At the "Big Pipe" contest the star gets trapped under water when her leash gets caught on some rocks. You see her undo the velcro on her ankle and then abandon the board (with the leash attached). About 20 seconds later when she is diving below the oncoming waves you can clearly see the leash re-attached to her ankle.
Factual error: When the upset boyfriend ends up driving off the cliff, his car explodes into flames magically and the fire doesn't even start at the engine. The entire interior of the car is consumed and when the car crashes, its explosion is on par with a missile. The character, when seen next, doesn't have a burn on him at all ignoring the fact that there was no humanely possible way to survive that fall and explosion.
Continuity mistake: About 35-40 minutes into the film, Jules and Jess are at the bus stop. Pinky's future in-laws drive by in the Jaguar with nothing in front of them. When the camera shot moves back as they enter the bend, another car has appeared in front of them.
Continuity mistake: When the team has their first game against the old guys, the first shot by the lead is wrong. Watch carefully and you will notice that the direction of the rotation of the stones changes about three times from clockwise to counter-clockwise during the same shot.