It's that time again — time to put the worries and troubles of your week aside and start planning your weekend.

These are five things you won't want to miss, as highlighted by the Homestretch's Tracy Fuller.

1. National Geographic presents Spinosaurus

The National Geographic Speakers' Series returns to Arts Commons this weekend with a focus on the dinosaurs from the Cretaceous era. 

Specifically, the series focuses on the Spinosaurus — the largest carnivorous dinosaur known to man.

Paleontologist Nizar Ibrahim will guide the audience through his amazing discovery of the most complete Spinosaurus skeleton.

When: Feb. 21 at 2 p.m. and Feb. 22 at 7 p.m., Jack Singer Concert Hall

2. Community Day at the Glenbow

From 9 a.m. to 5 p.m. the doors are open to anyone and everyone, for free. You can stroll through the permanent exhibitions and even check out the special feature exhibitions, including the newest exhibition "Embracing Canada: From Krieghoff to the Group of Seven," which opens Feb. 20. 

The museum will also host special creative programs for kids.

When: Feb. 21, 9 a.m. to 5 p.m.at the Glenbow Museum 

3. Comedy and Improv Marathon

Canadian comedian Jeremy Hotz is performing back-to-back shows this Friday. 

If you don't recognize the name, you'll definitely recognize his voice, his laugh and his signature side-long-smirk, which he hides behind between laughs.

When: Feb. 19, 7 p.m. and 9:30 p.m. at Mac Hall

For comedy that punches above its own weight and can work around your weekend schedule, Calgary's Kinkonauts are hosting a "26-Hour Improv Marathon" at The Lab this weekend.

The players will be putting on a different show every hour, and admission is by donation. 

When: Feb. 19, 8 p.m. at The LAB

4. An Evening of Dance on Film

The Calgary Underground Film Festival is hosting An Evening of Dance on Film, with two main features and two shorts. 

Top of the bill is the 2015 Feelings are Facts: The Life of Yvonne Rainer, a documentary of the life and works of the American modern dancer.

The festival is also screening Rare Birds, an award-winning documentary from the Norwegian National Opera and Ballet Company, which tracks every phase of production during the creation of Alexander Ekman's groundbreaking revision of Swan Lake.

When: Feb. 21, 7 p.m. and 9 p.m. with an artist talk following the final film at 10:15 p.m. at the Globe Cinema

5. Gregory Porter 

Grammy Award-winning jazz singer and songwriter Gregory Porter is coming to Calgary, bringing with him an intoxicating blend of soul, gospel, jazz and blues drawn from his roots in Bakersfield, California.  

When: Feb. 19, doors open at 6:30 p.m. at the Jack Singer Concert Hall