For tourists who wandered across Lafayette Park, intent on seeing the White House yesterday, there were two types of fascination where they had expected one.

Police cordoned off the streets. Beefy truck drivers jammed the streets with their vehicles and stopped the traffic. There was action. And cameras. And lights. It was a movie.

The makers of "F.I.S.T." a movie about labor leader in the fictional Federation of Interstate Truckers starring Sylvester Stallone, were filming their final scenes. The filming is expected to be completed today.

With the White House as a backdrop, 73 late 1950's vintage automobiles and trucks filled Pennsylvania Avenue. Women wearing calf-length suits, gloves and spike heels and men wearing fedoras and suits that fitted like paper sacks milled on the sidewalks.

"It's really something to see," said Ann Antonc, A Malaysian student in Canada, who had arrived in town yesterday morning with Halijah Ibrahim, a Malaysian student in Newcastle, England. The two had watched the same scene filmed twice.

"I saw more movie here than I did in L.A.," said Jimmie Jordan, a student from Sanabel Island, Fla. He had come to see the White House with his aunt Mary Walker and cousins Laura and Wendy, from Rocksville."I stopped at Paramount in Los Angeles and there was nothing going on," he said. "It's a touch of Hollywood in Washington.