The top 6 effortless examples of overacting in major movies are packed with entertainment.   No one can pull it off like these guys.  Nothing seems to divert their bizarre overacting skills.  Overacting so good you'll end up watching the scene a third time.  But first, the weakest link.

Justin Chatwin as Robbi in "War of the Worlds."

Can Robbi's father (played by Tom Cruise) handle the truth?  His co-star overacts even when they underact.  One example is when Robbi is hypnotized and seduced by wartime machines.  Robbi tells good old dad in the calmest voice ever to let him go "see" the war.  To "let him go."  If it weren't for the body parts flying everywhere, people running crazy, and a wild family pack trying to swipe up Robbi's little sister behind their backs, every viewer would notice Robbi's overacting (and underacting) skills.

Jim Carrey as Ace Ventura in "Ace Ventura: Pet Detective." 

"Liar Liar" is an overactive comedy script to begin with.  But "Ace Ventura" has unlimited overacting scenes.  One example scene would be when Ace was shot by many darts while running through the jungle.  The body starts to react to the serum as Carrey forces each numbing limb to move as far as they can take him.  Truly talented man.

William Shatner resurrects Captain Kirk in "Star Trek V." 

During the "Star Trek" series Captain Kirk's lines involved Shatner's trade - break - mark.  Shatner poised between words with enough space to run the sentence back into a viewer's mind a second time.  Captain Kirk brings the old flavor back in "Star Trek V" as Kirk questions God about why God needs a spaceship.  "I see (break), what does God (break) need with a spaceship?"  Shatner's face blazing with intensity as if the Captain deserves an answer.  Another overacting moment in major movies.

Joe Pesci as Tommy DeVito in "Goodfellas." 

Joe Pesci was born to overact in gangster moviesPesci shares his overacting portrayals in "Goodfellas" as Tommy DeVito.  Anywhere Tommy Devito loses their temper is another overacting scene.  "Casino" was another movie Pesci did some fond overacting.  "Lethal Weapon 3" doesn't go to Pesci though.  Mel Gibson takes the "Lethal Weapon" overacting movie series award.

Mel Gibson as Martin Riggs in "Lethal Weapon."

Mel Gibson's undercover cop portrayal of the hyper-active Martin Riggs in the "Lethal Weapon" movies may have stereotyped Gibson as a crazy man.  Every overacting scene paid off.  The movies did fairly well.  "Lethal Weapon" had one scene where Mel is doing business with some drug dealers.  They request 100(k) but Mel pulls out twenties and tens to pay $100 for blocks of cocaine.  He flashes the dealers a fake badge during the money exchange.  Mel frantically rolls around on the ground after firing a shot that turns the scene into overkill.  Followed by a splash of Three Stooges slapstick.  Yes, Mel can over-react as well.