The American Film Institute Theater will be the site of six programs devoted to finalists and prizewinners in the Second Annual Washington Film Festival this weekend. Organized by the Washington Area Filmmakers League in cooperation with the AFI, this year's is a greatly expanded competitive showcase for local talent. The number of entries almost tripled, and $1,800 worth of free film services have been donated as eminently practical prizes.

The final selections, 30 films out of 115 submitted will be shown Saturday. Abstract, animated and theatrical shorts share the bill at 4 p.m. followed by independent documentaries at 6:30 and sponsored films at 9 p.m. "Teenage Graffiti," a Washington-based theatrical feature shot on location in North Carolina in the summer of 1975 and recently acquired by Allied Artists, will be screened at midnight.

The awards ceremony is scheduled for Sunday at 7 p.m. The winning entries in each category as well as two films that have been judged the best of the festival will be shown and then repeated at a 10 p.m. "encore performances." A pass good for all programs will be on sale at the AFI box office for $8. Individual tickets for the awards program are priced at $4 and tickets for the other shows at $2. There will be no advanced sale for midnight screening, but tickets will be available at the door. Those holding festival passes or individual tickets for the 4 p.m. program will be admitted free to "Tenage Graffiti," which is considered a continuation of the theatrical division.

Judging from a sampling of finalists screened for the press, the strongest categories are the documentaries and sponsored films, not too surprising considering the emphasis on non-theatrical and institutional film-making in this area. Nevertheless, the level performance in all categories was consistenly encouraging, justifying the festival itself as a local attraction worth supporting and preserving.

There will be a benefit premiere of "Bound for Glory" on Tuesday, Feb. 8, at 7:30 p.m. at the Jeniffer 1. Proceeds are earmarked for the United Farm Workers, whose president, Cesar Chavez, is expected to atend.Streetsinger Bob Delvin will entertain with his rendition of Woody Guthrie standards. For information about reservations call Stephanie Caiola at 589-5165 or 234-3209. Since last weeks announcement in Film Notes, the local opening of "Fenlin's Cassanova" has been advanced to Friday, Feb. 11, at the K-B Fine Arts. "The Cassandra Crossing," an international thriller about the perilous journey of a train whose passengers have been exposed to a deadly bacillus, has been booked at five suburban theaters - the Beakon Mail, Beltway Plaza, Pike, Springfield Mall and Vienna - beginning Wednesday, Feb. 9.

The Radio-TV-Film Division at the University of Maryland has announced evening courses for the spring term in "Orson Welles," Contemporary European Cinema" and "Documentary in American Television." For detailed information about curricula and fees call 454-2541.