The special effects sequel "F-X 2" debuted in the No. 1 box-office spot, while the Madonna movie "Truth or Dare" opened to robust business in limited release.

According to figures released by Exhibitor Relations Co. Inc., "F-X 2" collected $5.5 million over the Mother's Day weekend. The film stars Bryan Brown and Brian Dennehy in a follow-up to the 1986 sleeper hit about a movie special-effects expert.Playing on just 51 screens in North America, Madonna's "Truth or Dare" grossed an estimated $557,000. While it did not place among the Top 10, the film drew a strong per-screen average of $10,922. The backstage documentary was to open on an additional 400 screens this weekend.

In second place behind "F-X 2" was "Switch," a comedy about role reversal starring Ellen Barkin and Jimmy Smits.

Here are the top movie ticket sales according to Exhibitor Relations Co.:

1. "F-X 2," $5.5 million (first week).

2. "Switch," $3.8 million (first week).

3. "Oscar," $3.2 million ($15.1 million, three weeks).

4. "One Good Cop," $2.1 million ($6.6 million, two weeks).

5. "The Silence of the Lambs," $2 million ($115.1 million, 13 weeks).

6. "Out for Justice," $1.7 million ($34.3 million, five weeks).

7. "A Kiss Before Dying," $1.68 million ($11.5 million, three weeks).

8. "Toy Soldiers," $1.66 million ($10.8 million, three weeks).

9. "Dances With Wolves," $1.44 million ($167.5 million, 27 weeks).

10. "A Rage in Harlem," $1.4 million ($4.6 million, two weeks).