First of, you talked about the MOVIE. in the movie goku goes straight into ss3 without letting Beerus make any comments.. Second, in the old dbs anime which you got this from, he does not say this "tough fight with frieza" bullshit.... You or whoever the place u found this shit from,added a whole ass line in there... Also, before you say it, the line "i think mereley defeating frieza is the best you could do" clearly means he can beat opponents like frieza, but that is nowhere near enough to give him a challenge, hence why he is disapointed in this development. So once again, watch your own anime properly and try to understand the lines your characters speak...