These are paraphrased from a French interview with Matthew Perry, you can read the Google translation here.
Matthew says he thought the story was funny but that he had no idea who Zac Efron was or what High School Musical was. And he jokes that now he is going to have an Zac film marathon but more seriously, that Zac is really talented.
He admits he and Zac don't look alike so during filming he joked with Zac, pointing at himself, that 'this is what awaits you'.
He says the message of the film is to seize the day, take what you are given and make the best of it and do not take it for granted.
And one new still of the cougar and her prey:
1, 2, 3