I'm super excitecd for DJ now after seeing Arya (2004) and Arya 2 (2009) over the last 2 days. Only Arya 2 is the MUST see movie, but you should watch the
opening dance number of Arya, to get a sense what a great dancer Allu Arjun is. Arya was his breakout film, and the debut blockbuster for director Sukumar -- the guy who directed 1: Nenokkadine!
Read the rest, and see a video review here: moviemavengal.com/2017/06/23/i-watched-both-of-allu-arjuns-films-arya-and-arya-2-to-get-ready-for-dj/