If each movie ticket is sold at $30, the cost of buying eight movie tickets is 8*$30 = $<<8*30=240>>240
Since eight movie tickets cost 2 times as much as one football game ticket, the cost of buying one football game ticket is $240/2 = $<<240/2=120>>120
Buying five football game tickets will cost 5*$120 = $<<5*120=600>>600
The total cost of buying eight movie tickets and five football game tickets is $600+$240 = $840
#### 840