The kids are back in school, the temperatures are high, but there’s still plenty of fun to be had this weekend. Enjoy fajitas on National Fajita Day, catch some live music or a movie at Central Green Park, and hit the library for a weekend yoga retreat. Friday, Aug. 18 National Fajita Day Move over Taco Tuesdays, Fajita Friday is around the corner to celebrate National Fajita Day. Here are five Tex-Mex restaurants in the area that serve fajitas and other Mexican fare. Friday and Saturday, Aug. 18-19 Music and movie nights at Central Green Park in La Centerra The Willow Fork Drainage District will hosts live music and a movie night at Central Green Park at La Centerra in Cinco Ranch. On Friday night, Katy natives Point Blank Society will put on a live music, and on Saturday night, a screening of the 2011 superhero flick “Thor” starring Chris Hemsworth will be open to the public. Seating is limited; lawn chairs and blankets are permitted, but alcohol, pets, glassware and balls are not permitted. 7:45 p.m. (Friday), dusk (Saturday). Free. 23501 Cinco Ranch Blvd., Katy. 281-395-5533. www.willowforkdrainagedistrict.com Saturday, Aug. 19 Yoga at Maud Smith Marks Branch Library Adults and seniors can hit the library Saturday to learn about the benefits of yoga and practice some basic yoga positions. Class will be held in the library’s meeting room. 3-4 p.m. Free. 1815 Westgreen Boulevard, Katy. 281-492-8592. http://www.hcpl.net/location/maud-smith-marks-branch-library