Oscars, Oscars, Oscars! That’s the main event going on this weekend (care to leave your picks in the comments?) but there’s tons of other fun things out there. Check out this week’s Arts Agenda and Music Agenda for some suggestions, like the opening of the Modigliani exhibit at the Phillips Collection on Saturday (a portrait of his is at right), or the continuation of the Teenbeat reunion tonight (check out shesbitter.com for some pictures of…