Liam Neeson says his action movie career “will draw to a close” once he hits 70. The ‘Blacklight’ star – who reaches the milestone on June 7 – believes his offers to appear in that genre of movies will soon dry up as “audiences aren’t stupid” and they won’t believe a man of his advanced years could beat up the bad guys. Liam told Sunday’s edition of the ‘Today Show’: “I think the action movies will draw to a close — they have to. Audiences aren’t stupid, you know. They’re gonna go, ‘Oh, f*** this guy, Liam Neeson. He’s got to be 71, 72, 73.’ I’ll stop at some stage.” The ‘Taken’ star doesn’t u…