While promoting his new movie Prom, actor Thomas McDonell has spoken briefly about his role in the upcoming Dark Shadows feature film, in which he will play the young version of Barnabas Collins.Speaking to Movieline, McDonell says: "It's a small role so it will only be a week or so [to film]. It's going to be at the end of the shoot, so I'm not going to be on set for another little while.
