7. Super Mario Bros. (1993)
It is often cited as the big-budget video game adaptation that kick-started the trend, and it also happens to be one of the worst, with its two biggest stars, Bob Hoskins (who played Mario) and Dennis Hopper (who played King Koopa) respectively referring to it as "the worst thing I ever did" and "a nightmare". In another case of baffling casting, the British Hoskins and Colombian John Leguizamo play Italian plumbers Mario and Luigi, who have to rescue Princess Daisy (Samantha Mathis) from a reptilian Hopper, while the plot of the games - admittedly minimalist though they are - is padded out with idiosyncratic sci-fi twists, relating to crusty fungi-ancients, butch women with shoes that allow them to fly, and the most inept policemen in cinema history. Dennis Hopper even utilises a Nintendo peripheral, the Super Scope, as a gun with which to "de-evolve" people at one point, I kid you not. The film set the standard for how video game movies possessed the capacity to completely disparage their source material, but I'll give them one thing; the Goomba (pictured above) playing the harmonica is freaking hilarious.