HOLLYWOOD — Maybe the miniseries isn’t extinct.

“Dinotopia,” ABC’s big gun for the May sweep, was living large in the ratings Sunday night, towering in its two-hour block in adults 18-49 and total viewers.

Night’s other big story, also involving movies, was a solid victory for CBS theatrical “Double Jeopardy” over NBC’s “L.A. Law” reunion made-for.

According to Nielsen prelims, the three-parter “Dinotopia” (16.7 million viewers, 5.8/17 in adults 18-49), which concludes tonight after part two aired Monday, led its time period by 61% in the demo and by more than 6 million viewers overall. It dominated in kids, drawing about one-third of the 2-11 crowd watching TV at the time (8.7 rating/32 share).

Audience makeup (strongest among kids and adults 35-54) suggests that a lot of youngsters were watching with their parents — exactly what the Alphabet was hoping for.

“Dinotopia” becomes ABC’s most watched “Wonderful World of Disney” movie since “The Miracle Worker” in November 2000.

Perf comes two weeks after “Living With the Dead” delivered CBS’ strongest mini numbers in two seasons and a few months after ABC’s huge success with “Stephen King’s Rose Red.” Perhaps some of the reason for the mini’s turnaround is that the sheer number of them has declined: This season the major nets combined for only five multiparters, down from 11 and 12 the last two years, respectively.

Strong opener for “Dinotopia” led into the season finale of “Alias,” which wrapped its initial campaign by taking its hour in adults 18-49 (prelim 5.1/12) and 25-54 (5.6/12) — its best numbers since October. Overall aud (11.4m) was the largest since its premiere.

ABC won the night easily in adults 18-49 (5.5/15), adults 25-54 (6.2/15) and total viewers (14.2m). Fox prevailed in adults 18-34 (4.4/14).

“Dinotopia” held Fox’s laffers down, but “Simpsons” (prelim 10.9m, 5.1/14 in 18-49) and “Malcolm in the Middle” (11.5m, 5.1/13) still won their slots in teens and 18-34. Net’s most impressive showing came from “The X-Files,” whose penultimate seg drew the series’ best ratings (10.4m, 4.9/12) in more than six months.

CBS rallied for second-place finishes Sunday in total viewers and women 25-54 behind “Double Jeopardy,” which delivered the best 18-49 rating for a theatrical on CBS (prelim 5.6/14) since “Sabrina” in January 1999, and the best 25-54 score (6.1/14) and overall aud (15.4m) since “Fire Down Below” in January 2000.

“Double” grew by leaps and bounds throughout its two hours, more than tripling its lead-in (finale of “The Education of Max Bickford”) in adults 18-49 (5.6 vs. 1.5).

The Ashley Judd-Tommy Lee Jones pic easily topped NBC’s “L.A. Law” (prelim 11.8m, 4.3/10 in 18-49).

ABC’s “The Practice” (prelim 11.9m, 5.0/13) was also no match for “Double,” losing the 10:30 half-hour by 5 shares in 18-49.