I want to take my baby siblings out.

So my mom is sick, and I offer to take care of my baby brothers and sisters, yari will be 7 in on Sunday, Manny 6 and Kenny 5. My little sister been telling me how she wants to see that movie Zootopia which I said yes! So we been playing this for 2-3 weeks. I want to take them all to the movies were we can eat dinner, have pizza while watching the movies. My mom now said they are all sick. I'm like no way! She got them all sick! The movie comes out today! I know she wants to see this movie. I think my mom making up excuses. She tends to lie to me a lot. But I think she wants to get better so she can go too. What you guys think? My boyfriend was upset too. I love my siblings.