Spiderman 3, despite making close to $900 million at the global box office, is often regarded as a failure. Sure it was way too long, had too many villains and ultimately ruined the franchise to the point that it needed to be re-booted but it still had Venom in it!
But many believe his inclusion was the cause of all the mess in the third instalment. Did Raimi actually want him in the film? Did the producers just include him to make more money?