Actor Tobey Maguire, in town to film “Labor Day,’’ was at the Verve, Crowne Plaza Natick on Tuesday. . . . All of the big stars in “Grown Ups 2’’ spent Tuesday in Swampscott. “Hunger Games’’ actor Alexander Ludwig tweeted in the morning, “Got sick scene on set today with C rock, K James, A sandler, D spade, M rudolph, S Hayek. Should be rowdy ;)’’ We assume he means costars Chris Rock, Kevin James, Adam Sandler, David Spade, Maya Rudolph, and Salma Hayek.