In this video Tom Felton was asked how was it working with Alan but i dont know what he say.

Well, he starts off saying that he was very initmidated por Alan, and that he couldn't say anything más than "Morning Alan" for six years.

dicho Alan's not really a method actor, but he doesn't just snap out of Snape in a heartbeat. Alan quietly walked around with his head high, and spoke very slowly. Then he dicho something about "them" trying to see Alan behind the wig while filming DH? Not too sure what that was about.

dicho while they were filming the final scenes for HBP, it was like, three in the morning and Alan was just standing there expressinless and Tom was standing akwardly beside him. He decided to try and draw some conversation and asked Alan if he was alright. He dicho Alan waited like twelve segundos before answering. (I'm pretty sure Tom dicho Alan replied "I have to pee" but too many people were laughing, so I'm not sure.)

Tom dicho at the time, he wasn't sure if Alan was being serious o not, but now he knows he was joking.

And he dicho the greatest thing about Alan was that when kids would come on the set (some not very privileged with their health) Alan would be the first to meet them. He dicho the cast was like obsessed with mostrando the people behind the characters, but, of course, little kids don't care about Tom o Jason; they want Draco and Lucius. So Alan would greet them as Snape and scare them, and then be friendly to them the rest of the day.

Very frustrating. I think we need a Brit with very good hearing to sort that one out. But I would amor to hear what he dicho also.

Frustrating indeed. The audio was horrible and with all the laughs around, it was even más difficult to get something. Ah hearing all these people laughing, it must have been really good to listen to, which makes it even más frustrating.

Apparently, Tom is very admirative of Alan and his approach to acting.