The movie was poorly reviewed on release but the actor defended the film's performance at the box office.
Responding to attacks on the film and his sketch show with James Corden, Horne told Metro: "Things went a bit over the top at the time but it’s only annoying when lies are made up. People kept writing the film was a flop but it earned its money back in five days.
"You have to take it with a pinch of salt. Considering James and I were around so much we were inevitably going to get criticised."
Asked if he gets defensive about criticism of Corden on Twitter, he added: "James isn't on Twitter and doesn't read it so what he doesn't know won't hurt him. It's not very nice but I get it too.
"I didn't know about Googling your own name on the internet until [TV presenter] Rick Edwards told me to try it. I did and some bloke was saying 'Mathew Horne should be hanged'.
"I wasn't sure what I'd done. I'm not looking again. Sometimes, though not very often, you get abuse sent to you, which is one thing; searching for it is another."