The Wonderful World of Dissocia at the Apollinaire Theater – Friday, 10/30 8 p.m. & Saturday 10/31 8 p.m.

Howl-oween Dog Costume Contest and Pet Parade at Faneuil Hall – Saturday, 10/31 2 p.m. (registration at 12 p.m.)

Halloween Organ Concert – Saturday, 10/31 7 p.m.

Evil Dead 2 at the Brattle Theater – Saturday, 10/31 1 p.m. & 7:30 p.m

Halloween Bike Ride – Saturday, 10/31 8 p.m.

Kings Dedham’s Michael Jackson Costume Party – Saturday, 10/31 8 p.m.

Orpheum Theater presents: An Evening With Guster, Lost and Gone Forever Played in its Entirety – Saturday, 10/ 31 7:30 pm – ticketmaster.com

Boston Symphony Orchestra – Saturday, 10/31 8:00 p.m.

Boston Vegetarian Food Festival – Saturday, 10/31 10 a.m. – 6 p.m. & Sunday, 11/1 10 a.m. – 4 p.m.

Open Farm Sunday – Sunday, 11/1 11 a.m.-2 p.m.

Image courtesy of Truth Serum Productions

October 30th, 2009